What Annie said. Spirit only works if your iPad is on 3.2.x. To check what firmware you are on, open up Settings, tap on General (on the left side of the screen) then tap on About (on the right side) and look for "Version"; that will tell you what firmware you are currently on. If Spirit tells you "unsupported", then you are likely on firmware 4.2.x or 4.3.x. If so, then you need to get the latest RedSn0w. To do so, go to redsn0w.com, and follow the instructions from there. Hope that helps clear things up...

And it will be like a taco inside a taco within a Taco Bell that's inside a KFC that's within a mall that's inside your dream!